Atomic Structture

Question 1

Similarities and differences between isotopes of the same atom

Answer 1

•Same number of protons
• Same number of electrons: therefore have similar chemical reactions
• Different number of neutrons: therefore have different masses

Question 2

What’s an isotope?

Answer 2

Atoms of the same element which have the same number of protons (atomic number) but a different number of neutrons (mass number)

Question 3

Why are atoms neutral?

Answer 3

The contain the same amount of positive protons and negative electrons

Question 4

How do u find out the number of protons, neutrons and electrons with atomic and mass number?

Answer 4

Number of protons = atomic number
Number of neutrons = mass number - atomic number
Number of electrons = number of protons

Question 5

Define the term mass number

Answer 5

The total number of protons and neutrons in the nucleus of an Atom

Question 6

Define the term atomic number

Answer 6

The number of protons in the nucleus of an atom